Answer
Jun 24, 2013 - 12:14 PM
Pyronyl 303 is a highly concentrated pyrethrum product that is used primarily for mosquito control is automatic misting systems. It can be used for flea and tick control outdoors, but since it is a very short lived product, I would not recommend it. To answer your question, the dilution rate is 1/4 oz per gallon of water on trees and ornamentals. Pyronyl is not really labeled to be sprayed onto turf grass directly. Here is the label - http://www.envincio.com/product-dload/Prentox%20Pyronyl%20303_spec.pdf
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